* [PATCH net] hinic: fix sending pkts from core while self testing
@ 2020-09-18 4:09 Luo bin
2020-09-18 21:11 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Luo bin @ 2020-09-18 4:09 UTC (permalink / raw)
To: davem
Cc: linux-kernel, netdev, luoxianjun, yin.yinshi, cloud.wangxiaoyun,
chiqijun, zengweiliang.zengweiliang
Call netif_tx_disable firstly before starting doing self-test to
avoid sending packet from networking core and self-test packet
simultaneously which may cause self-test failure or hw abnormal.
Fixes: 4aa218a4fe77 ("hinic: add self test support")
Signed-off-by: Luo bin <luobin9@huawei.com>
---
drivers/net/ethernet/huawei/hinic/hinic_ethtool.c | 4 ++++
drivers/net/ethernet/huawei/hinic/hinic_tx.c | 4 ++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
index 6bb65ade1d77..c340d9acba80 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
@@ -1654,6 +1654,7 @@ static void hinic_diag_test(struct net_device *netdev,
}
netif_carrier_off(netdev);
+ netif_tx_disable(netdev);
err = do_lp_test(nic_dev, eth_test->flags, LP_DEFAULT_TIME,
&test_index);
@@ -1662,9 +1663,12 @@ static void hinic_diag_test(struct net_device *netdev,
data[test_index] = 1;
}
+ netif_tx_wake_all_queues(netdev);
+
err = hinic_port_link_state(nic_dev, &link_state);
if (!err && link_state == HINIC_LINK_STATE_UP)
netif_carrier_on(netdev);
+
}
static int hinic_set_phys_id(struct net_device *netdev,
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_tx.c b/drivers/net/ethernet/huawei/hinic/hinic_tx.c
index 2b418b568767..c1f81e9144a1 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_tx.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_tx.c
@@ -717,8 +717,8 @@ static int free_tx_poll(struct napi_struct *napi, int budget)
netdev_txq = netdev_get_tx_queue(txq->netdev, qp->q_id);
__netif_tx_lock(netdev_txq, smp_processor_id());
-
- netif_wake_subqueue(nic_dev->netdev, qp->q_id);
+ if (!netif_testing(nic_dev->netdev))
+ netif_wake_subqueue(nic_dev->netdev, qp->q_id);
__netif_tx_unlock(netdev_txq);
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net] hinic: fix sending pkts from core while self testing
2020-09-18 4:09 [PATCH net] hinic: fix sending pkts from core while self testing Luo bin
@ 2020-09-18 21:11 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2020-09-18 21:11 UTC (permalink / raw)
To: luobin9
Cc: linux-kernel, netdev, luoxianjun, yin.yinshi, cloud.wangxiaoyun,
chiqijun, zengweiliang.zengweiliang
From: Luo bin <luobin9@huawei.com>
Date: Fri, 18 Sep 2020 12:09:38 +0800
> Call netif_tx_disable firstly before starting doing self-test to
> avoid sending packet from networking core and self-test packet
> simultaneously which may cause self-test failure or hw abnormal.
>
> Fixes: 4aa218a4fe77 ("hinic: add self test support")
> Signed-off-by: Luo bin <luobin9@huawei.com>
Applied.
^ permalink raw reply [flat|nested] 2+ messages in thread
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